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Ultrasound image texture control using adaptive speckle control algorithm

  • US 5,841,889 A
  • Filed: 12/29/1995
  • Issued: 11/24/1998
  • Est. Priority Date: 12/29/1995
  • Status: Expired due to Fees
First Claim
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1. A method for adjusting speckle in an image, comprising the steps of:

  • acquiring an input waveform Sin (x, y) representing an input image;

    transforming said input waveform to form an in-phase component (Re(Sin (x, y)) and a quadrature phase component (Im(Sin (x, y)) of said input waveform; and

    computing an output waveform Sout (x, y) representing a speckle-modulated region of said input image in accordance with the following equation;

    
    
    space="preserve" listing-type="equation">S.sub.out (x,y)=|{(Re(S.sub.in (x,y)).sup.2 +M(Im(S.sub.in (x,y)).sup.2 }|.sup.0.5wherein M is an adaptive speckle control index having a value in a range -1≦

    M<

    1.

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